Question

part a we just saw that the anion clo₃⁻ is named chlorate. what is the name of the anion io₃⁻? options: iodate, iodite, periodate

Explanation:

To name the anion \( IO_3^- \), we use the naming pattern for oxyanions. The given example is \( ClO_3^- \) (chlorate). For the same number of oxygen atoms (3), when the central atom is iodine (I) instead of chlorine (Cl), we replace "chlor" with "iod" and keep the suffix "-ate" (since the number of oxygens matches the -ate form, like chlorate has 3 O, iodate should too). Iodite would be \( IO_2^- \), and periodate is \( IO_4^- \), so \( IO_3^- \) follows the -ate naming as iodate.

Answer:

A. iodate